My Buddy always ran radial slicks on an 11 second Roadrunner 440 4 speed. (it will be in my journal soon with the new Engine I built for him) I talked him into running bias belted and on his first run it hooked up so harsh and the front end lifted he went back to the Radials the next pass LOL! But it was the first time the car broke 10! Hes afraid something on the car will break and he drives it on the street (its not a drag car) He couldn't believe the difference in traction!!!!